Introduction to Research Design and Statistics

Pseudo-Assignment #3


For each of the questions below, be sure to perform the necessary descriptive statistics and exploratory data analyses prior doing hypothesis testing. You only need to display these results or comment on them if they are relevant. The hsb2 data are to be used for all of the questions.

1. Determine if there is a statistically significant difference between the mean scores for Males and Females on the Math test (math).

2. Assuming the Writing test (write) and Math test (math) have common scales, conduct an analysis to determine if there is a significant difference between the two test scores for Females. Are the data correlated? Which statistical test should you use? 3. A district administrator strongly believes that female high school students are better writers than the male high school students.


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Phil Ender, 20nov03